Shikaku

Shikaku (also known as Rectangles) is a logic puzzle with simple rules and challenging solutions.

The rules are simple. You have to divide the grid into rectangular and square pieces such that each piece contains exactly one number, and that number represents the area of the rectangle.

Click and drag to draw a rectangle. To remove lines use the right mouse button or hold the Ctrl or the Shift key.

Video Tutorial

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This Month
1.	SirDiscalot	00:07.37
2.	SilverHawk	00:07.59
3.	Deathranger999	00:08.34
4.	gh	00:08.47
5.	GeorgPfleger	00:08.50
6.	Jen Jay	00:08.87
7.	grimmgirlfandom	00:09.34
8.	HDXX123456789	00:09.55
9.	venipede	00:09.79
10.	Dorice	00:09.83
11.	prinsed	00:10.17
12.	Tee ComThai	00:11.71
13.	Medved	00:12.58
14.	qobi	00:12.74
15.	jaripetteri	00:13.24
16.	HackMan	00:13.35
17.	kamikazi	00:14.48
18.	D A	00:14.91
19.	choi123	00:15.68
20.	Michail	00:15.86

This Week
1.	SilverHawk	00:07.59
2.	Deathranger999	00:08.34
3.	GeorgPfleger	00:08.50
4.	Jen Jay	00:08.87
5.	gh	00:08.92
6.	SirDiscalot	00:09.47
7.	Dorice	00:12.86
8.	jaripetteri	00:13.35
8.	HackMan	00:13.35
10.	kamikazi	00:14.48
11.	Itai795	00:16.55
12.	Krpyy	00:17.93
13.	Medved	00:24.45
14.	esamgu	00:32.67
15.	kkchan	02:31.10
16.	--- empty ---	--:--
17.	--- empty ---	--:--
18.	--- empty ---	--:--
19.	--- empty ---	--:--
20.	--- empty ---	--:--

Today
1.	GeorgPfleger	00:09.96
2.	Jen Jay	00:10.14
3.	Dorice	00:12.86
4.	jaripetteri	00:13.35
5.	--- empty ---	--:--
6.	--- empty ---	--:--
7.	--- empty ---	--:--
8.	--- empty ---	--:--
9.	--- empty ---	--:--
10.	--- empty ---	--:--
11.	--- empty ---	--:--
12.	--- empty ---	--:--
13.	--- empty ---	--:--
14.	--- empty ---	--:--
15.	--- empty ---	--:--
16.	--- empty ---	--:--
17.	--- empty ---	--:--
18.	--- empty ---	--:--
19.	--- empty ---	--:--
20.	--- empty ---	--:--

MO3
1.	zahhydude1	00:03.48
2.	vowels	00:03.81
3.	demian2	00:04.66
4.	BingBongBob	00:05.15
5.	numbrr	00:05.20
6.	nabi	00:05.27
7.	Vicellen	00:05.33
7.	coolcoolguy65	00:05.33
9.	mtanzer	00:05.34
10.	bearn	00:05.38

AO5
1.	zahhydude1	00:03.76
2.	vowels	00:03.88
3.	demian2	00:04.92
4.	numbrr	00:05.32
5.	BingBongBob	00:05.39
6.	nabi	00:05.41
7.	bearn	00:05.55
8.	Vicellen	00:05.69
9.	coolcoolguy65	00:06.01
10.	JZE	00:06.09

AO12
1.	zahhydude1	00:04.54
2.	vowels	00:04.91
3.	BingBongBob	00:05.84
4.	numbrr	00:06.26
5.	demian2	00:06.31
6.	bearn	00:06.41
7.	coolcoolguy65	00:06.66
8.	Vicellen	00:06.74
9.	nabi	00:06.91
10.	Vicell	00:07.26

Robots / programmatic solvers		info
1.	tlstyer	00:00.006
2.	Charlie Li	00:00.207
3.	Paul Bismuth	00:01.692

* MO3 - Mean of 3. The average of 3 consecutive times.
AO5 - Average of 5. The average of 5 consecutive times ignoring the highest and the lowest.
AO12 - Average of 12. The average of 12 consecutive times ignoring the highest and the lowest.
You need to be logged in to track your averages

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2025-05-19 13:42:12

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